US8512485B2 - Alloy - Google Patents
Alloy Download PDFInfo
- Publication number
- US8512485B2 US8512485B2 US12/983,413 US98341311A US8512485B2 US 8512485 B2 US8512485 B2 US 8512485B2 US 98341311 A US98341311 A US 98341311A US 8512485 B2 US8512485 B2 US 8512485B2
- Authority
- US
- United States
- Prior art keywords
- percent
- alloy
- molybdenum
- chromium
- niobium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
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- 239000000956 alloy Substances 0.000 title claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 49
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 32
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 19
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 19
- 239000011651 chromium Substances 0.000 claims abstract description 19
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 19
- 239000011733 molybdenum Substances 0.000 claims abstract description 19
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 17
- 239000010936 titanium Substances 0.000 claims abstract description 17
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 17
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 229910052796 boron Inorganic materials 0.000 claims abstract description 16
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 16
- 239000010955 niobium Substances 0.000 claims abstract description 16
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 16
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 16
- 239000011593 sulfur Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 11
- 229910052721 tungsten Inorganic materials 0.000 claims description 11
- 239000010937 tungsten Substances 0.000 claims description 11
- 150000001247 metal acetylides Chemical class 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 4
- 229910001026 inconel Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QNTVPKHKFIYODU-UHFFFAOYSA-N aluminum niobium Chemical compound [Al].[Nb] QNTVPKHKFIYODU-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/004—Dispersions; Precipitations
Definitions
- the present invention is directed to alloys and articles including alloy. More specifically, the present invention is directed to an alloy and articles including an alloy having a predetermined grain boundary morphology.
- the operating temperature within a gas turbine is both thermally and chemically hostile.
- Significant advances in high temperature capabilities have been achieved through the development of iron, nickel, and cobalt-based superalloys and the use of environmental coatings capable of protecting superalloys from oxidation, hot corrosion, etc., but coating systems continue to be developed to improve the performance of the materials.
- Inconel Alloy 706 components such as rotors and turbine disks (Inconel is a registered trademark of Inco Alloys International, Inc., Huntington, W. Va.). As identified in AMS specification 5703B, Inconel Alloy 706 has the composition by weight of carbon 0.06 max, manganese 0.35 max, phosphorus 0.35 max, sulfur 0.015 max, chromium 14.5 to 17.5, nickel 39 to 44, niobium 2.5 to 3.3, titanium 1.5 to 2, aluminum 0.4 max, boron 0.006 max, copper 0.3 max, and a balance of iron.
- AMS specification 5703B Inconel Alloy 706 has the composition by weight of carbon 0.06 max, manganese 0.35 max, phosphorus 0.35 max, sulfur 0.015 max, chromium 14.5 to 17.5, nickel 39 to 44, niobium 2.5 to 3.3, titanium 1.5 to 2, aluminum 0.4 max, boron 0.006 max, copper 0.3 max, and a balance of iron.
- Inconel Alloy 706 may also form grain boundary carbide films. Carbides having high chromium content can be easily dissolved at forging temperature. As a result, chromium redistributes along the grain boundaries as carbide films during the cooling. This may lead to embrittlement and significantly increased intergranular cracking susceptibility.
- Known alloys add rhenium and change the aluminum-niobium ratio to reduce the coarsening rate of gamma double prime phase.
- these approaches have no impact on the grain coarsening and intergranular cracking.
- chromium content is increased (for example, to about 18%) and titanium content is increased (for example, to about 1.9%). This creates a stronger alloy with reduced ductility.
- a alloy and process of forming a alloy controlling grain size and grain boundary that does not suffer from the above drawbacks would be desirable in the art.
- an alloy includes by weight greater than about 0.06 percent carbon, up to about 0.0015 percent sulfur, less than about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and 3.3 percent niobium, between about 1.4 percent and about 2 percent titanium, up to about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, greater than about 0.5 percent molybdenum, and a balance of iron.
- an alloy includes by weight up to about 0.06 percent carbon, up to about 0.0015 percent sulfur, less than about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 2 percent titanium, up to about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, greater than about 0.5 percent molybdenum, greater than about 0.5 percent tungsten, and a balance of iron.
- an alloy includes MC carbides dispersed with one or more of molybdenum and tungsten, wherein the MC carbides form a zig-zag morphology in the grain boundaries of the alloy.
- an alloy and a process of forming a alloy with controlled grain size and grain boundary are provided.
- Embodiments of the present disclosure resist intergranular cracking, resist embrittlement, form a desired grain boundary morphology such as zig-zag morphology, retard grain coarsening, extend the useful life of components formed from the alloy, extend inspection intervals for monitoring components formed from the alloy, permit operation of a gas turbine at high temperatures thereby improving efficiency, and combinations thereof
- the alloy can be a portion of any suitable component.
- the alloy can be a rotor or turbine disk, for example, for a gas turbine.
- a alloy having a composition range includes a predetermined grain boundary.
- the predetermined grain boundary morphology includes a zig-zag morphology.
- the composition range by weight is greater than about 0.06 percent carbon, up to about 0.0015 percent sulfur, less than about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 2 percent titanium, up to about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, greater than about 0.5 percent molybdenum, and a balance of iron.
- the alloy includes by weight between about 0.06 percent and about 0.7 percent carbon, up to about 0.0015 percent sulfur, between about 14 percent and about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 1.7 percent titanium, between about 0.2 percent and about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to 0.006 percent nitrogen, between about 0.8 percent and about 2.7 percent molybdenum, and a balance of iron.
- the alloy includes a composition.
- the composition is by weight about 0.06 percent carbon, up to about 0.0015 percent sulfur, about 15 percent chromium, about 40 percent nickel, about 2.9 percent niobium, about 1.5 percent titanium, about 0.45 percent aluminum, about 0.006 percent boron, about 0.3 percent copper, about 0.006 percent nitrogen, about 2.5 percent molybdenum, and a balance of iron.
- the composition is by weight 0.06 percent carbon, up to 0.0015 percent sulfur, 15 percent chromium, 40 percent nickel, 2.9 percent niobium, 1.5 percent titanium, 0.45 percent aluminum, 0.006 percent boron, 0.3 percent copper, 0.006 percent nitrogen, 2.5 percent molybdenum, and a balance of iron.
- the alloy includes a composition range of by weight up to about 0.06 percent carbon, up to about 0.0015 percent sulfur, less than about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 2 percent titanium, up to about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, greater than about 0.5 molybdenum, greater than about 0.5 tungsten, and a balance of iron.
- the alloy includes by weight less than about 0.000005 percent nitrogen.
- the presence of (TiC)N particles which are hard regular-shaped particles and act as crack initiation sites, are reduced or eliminated.
- the alloy includes by weight between about 0.06 percent and about 0.7 percent carbon, up to about 0.0015 percent sulfur, between about 14 percent and about 16 percent chromium, between about 39 percent and about 44 percent nickel, between about 2.5 percent and about 3.3 percent niobium, between about 1.4 percent and about 1.7 percent titanium, between about 0.2 percent and about 0.5 percent aluminum, up to about 0.006 percent boron, up to about 0.3 percent copper, up to about 0.006 percent nitrogen, between about 0.8 percent and about 2.7 percent molybdenum, between about 0.8 percent and about 2.2 percent tungsten, and a balance of iron.
- the alloy include by weight about 0.06 percent carbon, up to about 0.0015 percent sulfur, about 15 percent chromium, about 39.5 percent nickel, about 2.9 percent niobium, about 1.5 percent titanium, about 0.45 percent aluminum, about 0.006 percent boron, about 0.3 percent copper, about 0.006 percent nitrogen, about 1 percent molybdenum, about 2 percent tungsten, and a balance of iron.
- the alloy includes by weight 0.06 percent carbon, up to 0.0015 percent sulfur, 15 percent chromium, 39.5 percent nickel, 2.9 percent niobium, 1.5 percent titanium, 0.45 percent aluminum, 0.006 percent boron, 0.3 percent copper, 0.006 percent nitrogen, 1 percent molybdenum, 2 percent tungsten, and a balance of iron.
- MC carbides with one or more of molybdenum and tungsten are dispersed.
- the MC carbides mechanically block grain coarsening and generate a zig-zag morphology in the grain boundaries.
- the MC carbides comprise molybdenum and tungsten.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Conductive Materials (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/983,413 US8512485B2 (en) | 2011-01-03 | 2011-01-03 | Alloy |
| EP11194749A EP2471970A3 (en) | 2011-01-03 | 2011-12-21 | An Alloy |
| JP2011280638A JP2012149343A (ja) | 2011-01-03 | 2011-12-22 | 合金 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/983,413 US8512485B2 (en) | 2011-01-03 | 2011-01-03 | Alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| US20120171070A1 US20120171070A1 (en) | 2012-07-05 |
| US8512485B2 true US8512485B2 (en) | 2013-08-20 |
Family
ID=45375236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/983,413 Active US8512485B2 (en) | 2011-01-03 | 2011-01-03 | Alloy |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8512485B2 (enrdf_load_stackoverflow) |
| EP (1) | EP2471970A3 (enrdf_load_stackoverflow) |
| JP (1) | JP2012149343A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11198927B1 (en) | 2019-09-26 | 2021-12-14 | United States Of America As Represented By The Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
| US11846008B1 (en) | 2019-09-26 | 2023-12-19 | United States Of America As Represented By Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB760926A (en) * | 1953-08-21 | 1956-11-07 | Armco Int Corp | Stainless steels and their manufacture |
| FR2078328A5 (en) | 1970-02-09 | 1971-11-05 | Wiggin & Co Ltd Henry | Nickel-chromium iron alloy easily workable |
| US3663213A (en) * | 1970-05-11 | 1972-05-16 | Int Nickel Co | Nickel-chromium-iron alloy |
| US5415712A (en) | 1993-12-03 | 1995-05-16 | General Electric Company | Method of forging in 706 components |
| EP0774526A1 (de) | 1995-11-17 | 1997-05-21 | Asea Brown Boveri Ag | Eisen-Nickel-Superlegierung vom Typ IN 706 |
| EP1486578A1 (en) | 2003-06-13 | 2004-12-15 | Hitachi Ltd. | Steam turbine rotor and steam turbine plant |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH337219A (de) * | 1953-12-22 | 1959-03-31 | Nyby Bruk Ab | Gegenstand aus einer nicht ausscheidungshärtenden Legierung sowie Verfahren zu seiner Herstellung |
| US3871928A (en) * | 1973-08-13 | 1975-03-18 | Int Nickel Co | Heat treatment of nickel alloys |
| JPS5834129A (ja) * | 1981-08-21 | 1983-02-28 | Daido Steel Co Ltd | 耐熱金属材料の製造方法 |
| US4624716A (en) * | 1982-12-13 | 1986-11-25 | Armco Inc. | Method of treating a nickel base alloy |
| JPS60162760A (ja) * | 1984-02-06 | 1985-08-24 | Daido Steel Co Ltd | 高強度耐熱材料の製造方法 |
| JPS624849A (ja) * | 1985-06-28 | 1987-01-10 | Daido Steel Co Ltd | ＡｌおよびＡｌ合金の熱間加工用金型 |
| JP3084764B2 (ja) * | 1991-03-08 | 2000-09-04 | 大同特殊鋼株式会社 | Ｎｉ基超合金部材の製造方法 |
| JPH0742552B2 (ja) * | 1992-08-24 | 1995-05-10 | 日本冶金工業株式会社 | 耐食性に優れる高Ｎｉ合金薄板帯及びその製造方法 |
| US5660938A (en) * | 1993-08-19 | 1997-08-26 | Hitachi Metals, Ltd., | Fe-Ni-Cr-base superalloy, engine valve and knitted mesh supporter for exhaust gas catalyzer |
| DE19957646A1 (de) * | 1999-11-30 | 2001-05-31 | Krupp Vdm Gmbh | Verfahren zur Herstellung einer warmfesten Legierung mit guter Hochtemperaturoxidationsbeständigkeit |
| FR2819825B1 (fr) * | 2001-01-24 | 2003-10-31 | Imphy Ugine Precision | Procede de fabrication d'une bande en alliage fe-ni |
-
2011
- 2011-01-03 US US12/983,413 patent/US8512485B2/en active Active
- 2011-12-21 EP EP11194749A patent/EP2471970A3/en not_active Withdrawn
- 2011-12-22 JP JP2011280638A patent/JP2012149343A/ja active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB760926A (en) * | 1953-08-21 | 1956-11-07 | Armco Int Corp | Stainless steels and their manufacture |
| FR2078328A5 (en) | 1970-02-09 | 1971-11-05 | Wiggin & Co Ltd Henry | Nickel-chromium iron alloy easily workable |
| US3663213A (en) * | 1970-05-11 | 1972-05-16 | Int Nickel Co | Nickel-chromium-iron alloy |
| US5415712A (en) | 1993-12-03 | 1995-05-16 | General Electric Company | Method of forging in 706 components |
| EP0774526A1 (de) | 1995-11-17 | 1997-05-21 | Asea Brown Boveri Ag | Eisen-Nickel-Superlegierung vom Typ IN 706 |
| EP1486578A1 (en) | 2003-06-13 | 2004-12-15 | Hitachi Ltd. | Steam turbine rotor and steam turbine plant |
Non-Patent Citations (5)
| Title |
|---|
| EP Search Report from Application No. 11194749.5 dated Apr. 25, 2012. |
| Hong, H.U., Kim, I.S., Choi, B.G., Kim, M.Y. and Jo, C.Y. The effect of grain boundary serration on creep resistance in a wrought nickel-based superalloy, Materials Science and Engineering A 517 (2009) 125-131. * |
| Ping, D.H.; Gu, Y.F.; Cui, C.Y.; and Harada, H., Grain boundary segregation in Ni-Fe-based (Alloy 718) superalloy, Materials Science and Engineering A 456 (2007) 99-102. * |
| Ping, D.H.; Gu, Y.F.; Cui, C.Y.; and Harada, H., Grain boundary segregation in Ni—Fe-based (Alloy 718) superalloy, Materials Science and Engineering A 456 (2007) 99-102. * |
| Wang, H.M.; Yu, L.G.; and Jiang, P., Growth morphology and mechanism of MC carbide under quasi-rapid solidification conditions, Science and Technology of Advanced Materials 2 (2001) 173-176. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11198927B1 (en) | 2019-09-26 | 2021-12-14 | United States Of America As Represented By The Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
| US11846008B1 (en) | 2019-09-26 | 2023-12-19 | United States Of America As Represented By Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2471970A2 (en) | 2012-07-04 |
| EP2471970A3 (en) | 2012-10-10 |
| US20120171070A1 (en) | 2012-07-05 |
| JP2012149343A (ja) | 2012-08-09 |
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